symfony
diff --git a/‎src/Symfony/Component/DependencyInjection/ContainerBuilder.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/DependencyInjection/ContainerBuilder.php
+1-1Lines changed: 1 addition & 1 deletion b/‎src/Symfony/Component/DependencyInjection/ContainerBuilder.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/DependencyInjection/ContainerBuilder.php
+1-1Lines changed: 1 addition & 1 deletion
diff --git a/‎src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php
+2Lines changed: 2 additions & 0 deletions b/‎src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php
+2Lines changed: 2 additions & 0 deletions
@@ -1098,7 +1098,7 @@ private function createService(Definition $definition, array &$inlineServices, b
 
         if (null !== $factory = $definition->getFactory()) {
             if (\is_array($factory)) {
-                $factory = [$this->doResolveServices($parameterBag->resolveValue($factory[0]), $inlineServices, $isConstructorArgument), $factory[1]];
+                $factory = [$this->doResolveServices($parameterBag->resolveValue($factory[0]), $inlineServices, $isConstructorArgument) ?? $class, $factory[1]];
             } elseif (!\is_string($factory)) {
                 throw new RuntimeException(sprintf('Cannot create service "%s" because of invalid factory.', $id));
             } elseif (str_starts_with($factory, '@=')) {
 
@@ -547,11 +547,13 @@ public function testCreateServiceFactory()
         $builder->register('qux', 'Bar\FooClass')->setFactory(['Bar\FooClass', 'getInstance']);
         $builder->register('bar', 'Bar\FooClass')->setFactory([new Definition('Bar\FooClass'), 'getInstance']);
         $builder->register('baz', 'Bar\FooClass')->setFactory([new Reference('bar'), 'getInstance']);
+        $builder->register('quux', 'Bar\FooClass')->setFactory([null, 'getInstance']);
 
         $this->assertTrue($builder->get('foo')->called, '->createService() calls the factory method to create the service instance');
         $this->assertTrue($builder->get('qux')->called, '->createService() calls the factory method to create the service instance');
         $this->assertTrue($builder->get('bar')->called, '->createService() uses anonymous service as factory');
         $this->assertTrue($builder->get('baz')->called, '->createService() uses another service as factory');
+        $this->assertTrue($builder->get('quux')->called, '->createService() uses same class as factory');
     }
 
     public function testCreateServiceMethodCalls()